Maslosoft Mangan API
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/**
* This software package is licensed under AGPL or Commercial license.
*
* @package maslosoft/mangan
* @licence AGPL or Commercial
* @copyright Copyright (c) Piotr Masełkowski <pmaselkowski@gmail.com>
* @copyright Copyright (c) Maslosoft
* @copyright Copyright (c) Others as mentioned in code
* @link https://maslosoft.com/mangan/
*/
namespace Maslosoft\Mangan\Decorators;
use Maslosoft\Mangan\Helpers\DbRefManager;
use Maslosoft\Mangan\Helpers\PkManager;
use Maslosoft\Mangan\Helpers\RawFinder;
use Maslosoft\Mangan\Interfaces\Decorators\Property\DecoratorInterface;
use Maslosoft\Mangan\Interfaces\Transformators\TransformatorInterface;
use Maslosoft\Mangan\Meta\ManganMeta;
use Maslosoft\Mangan\Model\DbRef;
/**
* DbRefArray
*
* @author Piotr Maselkowski <pmaselkowski at gmail.com>
*/
class DbRefArrayDecorator implements DecoratorInterface
{
public function read($model, $name, &$dbValues, $transformatorClass = TransformatorInterface::class)
{
if (!$dbValues)
{
$fieldMeta = ManganMeta::create($model)->field($name);
$model->$name = $fieldMeta->default;
return;
}
/**
* NOTE: Documents must be sorted as $dbRefs,
* however mongo does not guarantee sorting by list of id's.
* This require sorting in php.
* If document has composite key this must be taken care too
* while comparision for sorting is made.
*/
$refs = [];
$unsortedRefs = [];
$pks = [];
$sort = [];
// Collect primary keys
foreach ($dbValues as $key => $dbValue)
{
$dbValue['_class'] = DbRef::class;
$dbRef = $transformatorClass::toModel($dbValue);
DbRefDecorator::ensureClass($model, $name, $dbRef);
// Collect keys separately for each type
$pks[$dbRef->class][$key] = $dbRef->pk;
$sort[$key] = $dbRef->pk;
}
// Fetch all types of db ref's en masse
$i = 0;
$unsortedPks = [];
foreach ($pks as $referenced => $pkValues)
{
if (empty($referenced))
{
continue;
}
// Find all referenced documents
$refModel = new $referenced;
$found = (new RawFinder($refModel))->findAllByPk($pkValues);
if (!$found)
{
continue;
}
foreach ($found as $document)
{
// Collect unsorted documents
$unsortedRefs[$i] = $document;
// Collect pk's
$unsortedPks[$i] = PkManager::getFromArray($document, $refModel);
$i++;
}
}
// Find existing documents
$existing = [];
foreach ($model->$name as $key => $document)
{
foreach ($sort as $i => $pk)
{
if (PkManager::compare($pk, $document))
{
// Set existing document with key same as in sort
$existing[$i] = $document;
}
}
}
// Sort as stored ref
foreach ($sort as $key => $pk)
{
foreach ($unsortedRefs as $i => $document)
{
if (PkManager::compare($pk, $unsortedPks[$i]))
{
if (array_key_exists($key, $existing))
{
// Update existing instance
$refs[$key] = $transformatorClass::toModel($document, $existing[$key], $existing[$key]);
}
else
{
// Create new instance
$refs[$key] = $transformatorClass::toModel($document);
}
}
}
}
$model->$name = $refs;
}
public function write($model, $name, &$dbValue, $transformatorClass = TransformatorInterface::class)
{
$fieldMeta = ManganMeta::create($model)->field($name);
$dbValue[$name] = $fieldMeta->default;
// Empty
if (!$model->$name)
{
return;
}
// Bogus data
if (!is_array($model->$name))
{
return;
}
// Store DbRefs and optionally referenced model
foreach ($model->$name as $key => $referenced)
{
$dbRef = DbRefManager::extractRef($model, $name, $referenced);
if ($fieldMeta->dbRef->updatable)
{
DbRefManager::save($referenced, $dbRef);
}
$dbValue[$name][$key] = $transformatorClass::fromModel($dbRef, false);
}
}
}
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